IIT JAM Exam  >  IIT JAM Questions  >  An ideal gas, Cv=5/2R is expanded adiabatical... Start Learning for Free
An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is?
Most Upvoted Answer
An ideal gas, Cv=5/2R is expanded adiabatically against a constant pre...
Given


  • Cv = 5/2R

  • Adiabatic expansion

  • Constant pressure = 1 atm

  • Volume doubles

  • Initial temperature = 25°C = 298K

  • Initial pressure = 5 atm



Solution

Step 1: Finding initial volume and moles of gas

Using ideal gas equation, PV = nRT

Initial volume, V1 = nRT1/P1 = (1 mole x 5 atm x 298K) / 5 atm = 298 L

Number of moles, n = PV/RT = (5 atm x 298 L) / (0.082 L atm/K mol x 298 K) = 1.82 moles


Step 2: Finding final temperature and volume

Using adiabatic expansion equation, P1V1^γ = P2V2^γ where γ = Cp/Cv = 7/5 for ideal gas

Final volume, V2 = 2 x V1 = 596 L

Final pressure, P2 = P1(V1/V2)^γ = 5(1/2)^7/5 = 2.07 atm

Using ideal gas equation, P2V2 = nRT2

Final temperature, T2 = P2V2/nR = (2.07 atm x 596 L) / (1.82 mol x 0.082 L atm/K mol) = 638K


Answer

The final temperature, T2 = 638K.
Explore Courses for IIT JAM exam
An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is?
Question Description
An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is?.
Solutions for An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? in English & in Hindi are available as part of our courses for IIT JAM. Download more important topics, notes, lectures and mock test series for IIT JAM Exam by signing up for free.
Here you can find the meaning of An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? defined & explained in the simplest way possible. Besides giving the explanation of An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is?, a detailed solution for An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? has been provided alongside types of An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? theory, EduRev gives you an ample number of questions to practice An ideal gas, Cv=5/2R is expanded adiabatically against a constant pressure of 1atm untill it doubles in volume.If the initial temperature is 25degree celsius and the initial pressure is 5atm,the value of T2 is? tests, examples and also practice IIT JAM tests.
Explore Courses for IIT JAM exam

Suggested Free Tests

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev